You have a circular wire loop of radius \(a=20 \mathrm{~cm}\). It carries a current that increases linearly from 0 to \(5 \mathrm{~A}\) in \(0.01 \mathrm{~s}\). At the center of this loop is a wire loop of radius \(b=1 \mathrm{~mm}\) and resistance \(R=1.8 \mathrm{mV} / \mathrm{A}\). The loops are coplanar. What is the current induced in the smaller loop?